HHH-15393 - Improve write-paths to use mapping model

hibernate-core/src/main/java/org/hibernate/engine/jdbc/batch/internal/BatchImpl.java

@@ -144,7 +144,6 @@ public class BatchImpl implements Batch {
 					);
 				}
 				finally {
-					// todo (mutation) : is this needed?
 					jdbcValueBindings.afterStatement( statementDetails.getMutatingTableDetails(), session );
 				}
 			} );

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/AbstractEntityCollectionPart.java

@@ -221,8 +221,6 @@ public abstract class AbstractEntityCollectionPart implements EntityCollectionPa
 			NavigablePath fetchablePath,
 			FromClauseAccess fromClauseAccess,
 			DomainResultCreationState creationState) {
-
-		// todo (mutation) : account for `@MapKey( name = "someManyToOne" )`
 		return collectionTableGroup.getIndexTableGroup();
 	}
 

hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/OneToManyCollectionPart.java

@@ -116,8 +116,6 @@ public class OneToManyCollectionPart extends AbstractEntityCollectionPart implem
 
 	// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 	// TableGroupJoinProducer
-	//		todo (mutation) : this is only needed for `AbstractEntityCollectionPart#generateFetch`
-	//			to create the map-key join
 
 	@Override
 	public SqlAstJoinType getDefaultSqlAstJoinType(TableGroup parentTableGroup) {